baber/WOPTO huggingface dataset:
Patent GB-983987-A (GB)
Title: Improvements in or relating to measuring and recording devices
Inventor: ODIER MARC
IPC: G01R17/00
Filed: 1961-05-04
Abstract: 983,987. Electric tests and measurements; electric measuring instruments; photo-electric position-determining devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 4, 1961 [May 19, 1960], No.16177/61. Headings G1A, G1Q and G1U. A measuring and recording device comprises a measuring apparatus the displacements of a moving element of which satisfy a differential equation of the second order, a separating member connected between the generator of a physical quantity to be measured and the said measuring apparatus and controlled in a periodic fashion by the moving element of the measuring apparatus, and a "spot follower" which continuously records the amplitude of the periodic movement of the moving element. A "separating member" is an arrangement which enables the quantity being measured to be directly or indirectly interrupted. The measuring apparatus may be a galvanometer, the axis 11 of which carries a mirror 12 which gives two reflected beams 13, 14 from two lamps 15, 16. One beam 14 continuously positions the photo-electric element of a follower writer assembly 17 driven by a conventional servomotor so as to trace out by a stylus 18 the position of the moving element of the meter as a function of time. The other beam 13 impinges on a photoelectric element 21 when the meter moving element passes through its zero position. This generates an electric signal which is used to operate a discriminator or "separating member"- in the input circuit to the meter (not shown in Fig. 8). This discriminator, which may be a mechanical or electrical switch or inverter allows the signal being measured to be applied to the meter for not more than half an oscillation period, so that impulses are repeatedly applied to the meter winding, causing the winding to oscillate to positions of much greater amplitude than would be given by a steady state reading of the meter, and limited only by the damping constants of the meter layout suspension. The discriminator may be a flip-flop, arranged so that alternate signals from 21 open and close the input signal path. The speed of the record paper 19 past the pen 18 should be adjusted so that the trend of the peaks 22, which indicate the amplitude of the input signal, may be easily observed. The arrangement is then suitable for measuring a small value which varies slowly compared with the period of oscillation of the measuring apparatus. Embodiments wherein the discrimator allows the signal to be applied in both half periods but with opposed polarity, and where the input signal is used to charge a condenser which is subsequently discharged into the meter are described. The application of the invention to a torsion microbalance for measuring the pressure of radiation is suggested, the separating member in this case being an optical obturator which periodically shuts off the radiation from the mirror of the microbalance in synchronism with the oscillations of the balance.
Patent GB-421782-A (GB)
Title: Improved wire-cloth trays for biscuit making
IPC: A21B3/15
Filed: 1934-05-31
Abstract: 421,782. Baking-trays. SCOBIE & McINTOSH, Ltd., 82, Fountainbridge, and BACON, T. B., 15, Lauderdale Street, both in Edinburgh. May 31, 1934, No. 16223. [Class 66] [See also Group VI] In a tray for baking biscuits of the kind comprising a wire cloth D supported by a metal frame, the members A, A<1> of which are U-shaped in cross-section, the lower limbs B, B<1> of the frame members A, A<1> have upwardly up-turned edges C, so that after the edges of the wire cloth are interposed between the limbs of the frame members and these members compressed, the wire cloth is forced upwards by the up-turned edges C until flush with the upper surfaces of the frame members, whereby risk of the biscuits being damaged during removal from the tray is eliminated. The corners of the tray are stiffened by brackets E, and the limbs of the frame members and the wire cloth are secured together by rivets F.
Patent GB-1489854-A (GB)
Title: Paper sizing process
IPC: D21H17/16
Filed: 1976-04-21
Abstract: 1489854 Sizing paper NATIONAL STARCH & CHEMICAL CORP 21 April 1976 16224/76 Addition to 1409830 Heading D2B A method of internally sizing paper and board comprises adding to the wet pulp prior to sheet formation one or more sizing agents of the formula wherein R x  and R y  are each an alkyl radical containing at least 5 carbon atoms. The sizing agent may be used in combination with pigments, fillers and cationic agents such as alum, aluminium chloride long chain fatty amines having at least 8C atoms in the chain, cationic starches, cationic polyacrylamides, cationic polyamides, animal glue, chromic sulphate, sodium aluminate, and cationic thermosetting resins. The sizing agent may be added in the form of an aqueous emulsion which may include hydrocolloids and surfactants. The pulp may comprise natural or regenerated cellulosic fibres, polyamide, polyester, acrylic and mineral fibres e.g. asbestos and glass fibres.
Patent GB-679306-A (GB)
Title: Improvements in apparatus for connecting a towed vehicle to a towing vehicle
IPC: B60T7/20
Filed: 1950-06-29
Abstract: 679,306. Vehicle draw-gear; pneumatic springs. THOMPSON, G. P. June 29, 1951 [June 29, 1950], No. 16296/50. Classes 103(v) and 108(ii) Secured to a towed vehicle is a casing 1 having air chambers 6, 7 therein, separated by a piston, with cap washers 13, 14, which moves in a cylinder 8 fixed in the lower part of the casing 1. When the towing vehicle exerts a pull on the rod 9 the air pressure increases in the chamber 7 and decreases in the chamber 6, and to ensure that air does not pass the piston the chambers 6, 7 are partially filled with oil so that on initial displacement of the piston its positive side is submerged. When the thrust on the rod 9 is reversed the end of the piston or the rod 9 engages the rod 17 to apply the trailer brakes To render the device inoperative during reversing of the tractor and trailer a reversing link may engage the fixed lugs 21.
Patent GB-814268-A (GB)
Title: Improvements relating to chain drives
IPC: F16H7/06
Filed: 1957-05-22
Abstract: 814,268. Chain gearing. DAIMLER-BENZ A.G. May 22, 1957 [May 24, 1956], No. 16314/57. Class 80 (1). In order to reduce noise in a chain drive the links of the chain 14 are supported by an endless belt 16 of rubber or like material running round at least two of the sprocket wheels. Advantageously the belt passes round the smallest wheel and the wheel nearest to it. The belt holds the chain rollers clear of the bottoms of the tooth gaps and also damps any oscillations of the length of chain between wheels. In the case of a double sprocket wheel a single belt 161, Fig. 3, runs in a groove between the rings of teeth. To allow the belt to yield laterally it may have a stepped cross-section, as shown, or may engage the wheel groove with clearance. A reinforcing insert, such as a wire helix, may be provided in the belt. In the case of a single sprocket two belts are provided running in respective rectangular grooves, one on each side of the ring of teeth. The inner region of each belt has a semi-circular cross-section.
Patent GB-1176117-A (GB)
Title: Improvements in or relating to Metallized Bodies.
Inventor: BERNHARDT GUNTHER
IPC: C23C18/16
Filed: 1968-04-04
Abstract: 1,176,117. Vinyl chloride copolymers. DYNAMIT NOBEL A.G. 4 April, 1968 [7 April, 1967], No. 16347/68. Heading C3P. [Also in Division C7] A plastics body which is to be electroless and electrolytically plated comprises a copolymer of vinyl chloride with from 4 to 20% by weight of fumaric acid diester and/or maleic acid diester. The copolymer may be made by reacting for 20 hours at 55 C., 4À2 litres of water, 190 c.c. of a 3% aqueous solution of a cellulose methyl ether, 14À3 g. dilauroyl peroxide, 2À02 kg. vinyl chloride, and 176 g. fumaric acid dicetyl ester.
Patent GB-727136-A (GB)
Title: Improvements in or relating to ram jet engines and methods of operating the same
IPC: F02K7/10
Filed: 1951-07-11
Abstract: 727,136. Jet-propulsion plant. SWEET, D. H. May 16, 1952 [July 11, 1951], No. 16481/51. Class 110 (3). [Also in Group XII] A method of starting or operating a ram jet engine comprises creating in an expansion chamber thereof an air stream to flow in the direction of thrust, segregating the air stream into a major and a minor portion, accelerating the minor portion by combustion therein and merging the accelerated minor portion into the major portion to exert an aspiratory impulse to produce an acceleration of the major portion in the direction of thrust. A ram jet engine comprises an air intake cone 68 and a bulbous portion 70 interconnected by a cylindrical portion. Segregators 64, 66 are mounted in the cylindrical and bulbous portions respectively by struts 78, 80. The strut 78 constitutes a fuel supply duct which has discharge ports 86 and is controlled by a valve C. Compressed air and exhaust gases is fed through a valvecontrolled manifold 60 and jets 28 into the annular space between the segregator 64 and the cylindrical portion of the engine; fuel being burnt in the jets 28. The engine is also provided with valve controlled fuel lines 74, 40 arranged as shown. In a modification, Fig. 2 (not shown), the segregator 66 and the bulbous portion 70 are dispensed with; the fuel line 74 being disposed in a continuation of the cylindrical portion of the engine. In a modification, Fig. 4, of the ram jet engine described with reference to Fig. 2, the air intake is provided with a downwardly directed neck portion 88 which merges into the cylindrical portion 20 of the engine; the latter portion being provided with a jacket 94 through which air from a compressor is circulated prior to entering the manifold 60. About 10-20 per cent of the air in the jacket is fed directly into the cylindrical portion of the engine through a series of perforations. The perforations are arranged in quincunx formation and are about an eighth of an inch in diameter and spaced about an inch apart: The engine may-be faired into the wing of an aircraft, left exposed to the air stream or housed in a fuel tank. A pitot tube may be disposed in the small end of the entrance cone for operating a bellows to control the supply of fuel in accordance with the function of the air stream available. The aircraft, Fig. 1 (not shown), incorporates a ram jet engine in each wing together with a single booster unit for supplying compressed air thereto. The booster unit is closed down or maintained at one quarter load when the ram jet engine is operating.
Patent GB-434150-A (GB)
Title: Method of commercially manufacturing tin oxide from the instantaneous combustion of a mixture of air and pulverized hot liquid metal
IPC: C01G19/02
Filed: 1934-06-04
Abstract: <PICT:0434150/III/1> In the production of tin oxide by oxidation of pulverized molten metallic tin with hot air, the furnace chamber supplying the mixture of molten metallic tin and hot air to a combustion chamber and the combustion chamber itself are initially heated, say to 1000 DEG  C., to start the process, whereafter the temperature in the p  combustion chamber is maintained by the heat of combustion and a portion of this heat is recuperated to maintain the temperature in the furnace chamber.  As shown in the Figure tin melted in a receptacle A in the furnace chamber is supplied by a pipe B to a pressure or feed reservoir D, and issues through a jet E.  Hot air under pressure from a heater F is fed to a sheath G surrounding the jet, and the mixture of hot air and pulverized molten tin ignites in the combustion chamber J, from which the tin oxide is removed by a fan to settling chambers.  Initial heating of the furnace chamber may be effected by a hearth H and that of the combustion chamber by an oil burner.  Heat may be recuperated from the combustion chamber by providing air chambers in its walls into which cold air is sucked, the issuing heated air being passed to the furnace chamber and the hearth H being progressively cut out of action by an appropriate register.  The Specification, as open to inspection under Sect. 91, is not limited to recuperation of heat from the combustion chamber for maintaining the temperature of the furnace chamber.
Patent GB-995151-A (GB)
Title: Fuel cell electrode
Inventor: MCEVOY JAMES EDWARD
IPC: H01M4/96
Filed: 1962-05-01
Abstract: A fuel cell electrode having a matrix of carbon is made by forming a slurry of activated carbon finer than U.S. standard 200 mesh and an aqueous solution of either palladium-chloride or chloroplatinic acid, drying the carbon and depositing it from suspension into the pores of a carbon matrix.  The compounds may be reduced by reaction with sodium bicarbonate or by hydrogen. The carbon particles may be retained in the matrix by a permeable coating.
Patent GB-242914-A (GB)
Title: Improvements in and relating to the manufacture of stauffer lubricators
IPC: F16N11/02
Filed: 1925-06-29
Abstract: 242,914. Gaitzsch, J. June 29, 1925. No Patent granted (Sealing fee not paid). Force-feed lubricators.-The stem a of a Stauffer lubricator is riveted to the cup c while the parts are red-hot, after which a nut-shaped formation e is given to the upper part of the stem and the lower part f is made thinner and is screw-threaded, the cup c is screwthreaded externally and the stem is bored. The screw cap g is provided with vertical gripping ribs h.
Patent GB-347516-A (GB)
Title: Improvements in or relating to double tariff and like apparatus for electric supply systems
IPC: B04B9/08
Filed: 1930-05-29
Abstract: 347,516. Switching systems for consuming devices. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Beriin. May 29, 1930, No. 16653. Convention date, May 30, 1929. [Class 38 (iv).] A double tariff clock-switch cutting in and out a consuming device during low tariff and high tariff periods. respectively has hand-controlled means inside the clock, and operative in spite of the clock, whereby the consuming device can be cut out during the low tariff or cut in during the high tariff periods. Three arrangements are described. As shown in Fig. 1, the clock 6 periodically changes the gears of the meter 8 by oscillating a switch arm 21, and at the same time controls the consuming device 3 by a switch arm 11 geared to the arm 21. A hand-lever 5 is coupled by differential gearing to the switch device, so that the range of movement of the switch arm 11 may be changed from a normal range a-b to one b-c, in which the device 3 is constantly on, or to another a--d, in which it is constantly off. In a system, Fig. 2, using a rebate meter 14 in circuit throughout the low tariff period, the clock 6 normally oscillates a switch arm 91 between positions 92, in which the device 3 is cut out (high tariff period), and 96 in which it is cut in in series with the rebate meter 14 (low tariff period). A hand-lever 5 operates as above described to change this range of movement, so that in one position the arm 91 oscillates between positions 93, 94 and the device 3 is always off, and another, between positions 95, 97, in which it is always on, the rebate meter being bye-passed in position 97 and in circuit in position 95. In a modified arrangement, Fig. 3, also used with two meters, doublethrow mercury switches 16 are rocked from a normal off position, in which the device 3 is cut out, to the right, in which the device is in circuit with the rebate meter 14, or to the left, in which it is in circuit without the rebate meter (the high tariff connection). The clock 28 oscillates a member which rocks an arm 195, controlled by a dead-centre spring 194. This arm actuates the switch through a lost-motion connection comprising elements 192, 193, moved with the arm 195, and an arm 182 of a threearmed lever applied to the switch support. To prevent connection of the device 3 during high tariff the movement of the switches to the left can be blocked by a hand-control 500 coupled to a stop arm 20, and a hand-control 50 may be used to engage a pin 291 with a notch in a fishtail 183 to prevent any use whatever of the device 3. In addition, the clock may control a further pin co-operating with a fishtail to prevent use of the device 3 on peak load or at any given period.
Patent GB-1262044-A (GB)
Title: Film cartridge and projector assembly
Inventor: BRADT GORDON EDWIN
IPC: G03B23/02
Filed: 1970-04-08
Abstract: 1,262,044. Cine film cartridges. BELL & HOWELL CO. April 8, 1970 [April 21, 1969], No.16656/70. Heading G2E. A cartridge 10 containing a reel of film is located on the film-extraction module 14 of a projector by:- a) two abutments 34, 36 extending upwardly from the surface 16 of the module b) mounting apertures 18, 20 in the base of the cartridge to receive the abutments c) parallel ribs on the cartridge rear wall with flexible latching tabs 30 at each end of the ribs d) a groove along face 44 of the module which receives the ribs, and a recess 48 at each end of the groove to receive tabs 30. Side guides 38, 40 extend upwardly from surface 16 to engage wall 42 of the cartridge.
Patent GB-914675-A (GB)
Title: Improvements in or relating to high frequency heating apparatus
Inventor: SPASH DAVID ISAAC
IPC: H05B6/76
Filed: 1960-05-11
Abstract: 914,675. Screening high-frequency heating apparatus. RADYNE Ltd. May 4, 1961 [May 11, 1960], No. 16664/60. Class 39 (3). A pair of sheet metal plates forming part of the screening cubicle of a high-frequency heating unit are continuously welded together along a marginal flange 5, or 11 and 12, Figs. 1 and 3, formed on one or both of the plates.
Patent GB-111171-A (GB)
Title: A New or Improved Product Possessing Rubber-like Properties.
Inventor: WEYGANG CHARLES
IPC: C08L89/00
Filed: 1916-11-22
Abstract: 111,171. Weygang, C. Nov. 22, 1916. Plastic compositions containing casein, gelatin, &c., celluloid, and india-rubber.-A rubber-like product is made by digesting casein or animal glues in carbolic or acetic acid and treating the product with formic acid, formates, formalin, chromic salts, alums, tannic acid or a mixture of these. Glycerine, zinc oxide or carbonate, hydrated lime, molten pitch, solutions of resinous gums, rubber, or celluloid or the like and diluents such as alcohol and mineral oils may be added prior to the latter treatment. In an example, 1 part by weight of gelatin is treated with 1-2 parts of crude carbolic acid at a temperature not exceeding 180‹ F. and subsequently 5-25 per cent. of glycerine is added and from 1-4 parts of pitch to 1 part of the gelatinous mixture. When a preponderance of pitch is added, the formic acid or other fixing- agent may be omitted. Reference has been directed by the Comptroller to Specifications 4343/74, 18864/96, 15115/98, 926/01, 27090/04, 12277/05, 12278/05, 23031/07, 4154/09, 18694/09, 26093/10, and 17242/14.
Patent GB-598201-A (GB)
Title: A process of producing insulative coatings of silicon steel sheets
IPC: H01F41/02
Filed: 1945-07-02
Abstract: 598,201. Insulative coatings. ENCINDERING & METALS CO., Ltd. (American Rolling Mill Co.). July 2, 1945, No. 16793. [Class 56] A tightly adherent insulative coating is produced on the surfaces of silicon steel for power transformers and like magnetic purposes, by preferentially oxidizing silicon in the sheet stock at and adjacent the surfaces thereof to form silica, coating the surfaces of said stock with a magnesia bearing substance and in a heat treatment causing the silica so formed to migrate to the surface of the steel and there to combine with the magnesia to form an adherent layer of glassy substance, the thickness of which is dependent upon the quantity of silica therein primarily derived from the silicon steel. Silicon steel, of say 0.05-4.00 per cent silicon, is treated according to the method of Specification 558,558, [Group XXII], to an open anneal at temperatures of 1350-1650‹ F. in a hydrogen bearing atmosphere containing 2-35 per cent by volume of water vapour to decarbonize the steel and to oxidize the silicon without oxidizing the iron. A two-minute heat treatment at a temperature of 1500-1600‹ F. and a hydrogen bearing atmosphere of 15 per cent water vapour may be used for 29-gauge material in which the carbon content has thereby been reduced to as low as 0.01 per cent and the desired silica developed at the surface. The sheets or coils are then coated with a magnesia slurry comprising an aqueous suspension of a mixture of light and " non-hydrating " magnesia, which has been found to provide an even coat, and box annealed. The charge is slowly heated to 1100‹ F. to drive off the chemically combined water from the magnesium hydroxide, a hydrogen bearing atmosphere being introduced at 850‹ F. to sweep out the water vapour and prevent oxidation of iron. The temperature is gradually raised to 2100‹ F. during which period the developed silica segregates at the surface of the steel and is maintained at this temperature until the silica combines with the magnesia to form a glass. The furnace is slowly cooled to 1000‹ F., the sheet removed and excess magnesia, which prevented sticking during the heating process, brushed off. Specifications 527,525, [Group XXII], 531,599, 545,938, [Group XXII], and 560,667 also are referred to.
Patent GB-457832-A (GB)
Title: Improvements in or relating to rotary filters
IPC: B01D33/00
Filed: 1935-06-11
Abstract: 457,832. Filters. INTERNATIONAL COMBUSTION, Ltd., Aldwych House, Aldwych, London, HARLOW, W. F., Derwent, Castle Hill, Duffield, near Derby, and GOODWIN, F. G., 31, Nunsfield Drive, Alvaston, Derby. June 11, 1935, No. 16843. [Class 46] Each peripheral compartment 1 of a rotary drum filter has a base plate 3 provided with channels which run obliquely to the axis of the drum as shown in Fig. 3. The channels may be formed by corrugations in the plate and all the plates are fixed to plates 4 and to end rings 6. The compartments are separated by bars 7 and between these bars and the plates 3 are longitudinal channels having perforations 14 which open below into drain channels 12 leading to segmental chambers connected by pipes 15 to a trunnion valve for supplying air under pressure or creating a vacuum in the compartments 1. The filter cloth rests on the corrugations of the.plates 3 and may be protected and held in position by a surrounding wire. The drum is divided by a ring 10 and the construction described above is duplicated on the other side of the ring.
Patent GB-936379-A (GB)
IPC: F16C33/54
Filed: 1962-05-02
Abstract: 936,379. Bearings. DURKOPPWERKE A.G. May 2, 1962 [May 10, 1961], No. 16846/62. Class 12 (1). [Also in Group XXII] A divided cage for a roller bearing has, between two halves d, e thereof, rollers h, i, which have a diameter equal to that of rollers b each of which is in a pocket a of the cage, and have a length approximately equal to the length of the cage. The cage is divided by removing portions c of two diametrically-opposite pockets, thus forming faces f, f<SP>1</SP> and g, g<SP>1</SP>, which are engaged by said rollers h, i.
Patent GB-145524-A (GB)
IPC: C08B7/00
Filed: 1920-06-22
Abstract: Cellulose esters are prepared by subjecting to the usual process of esterfication a cellulose derivative obtained on treating cellulose with nitric acid in the presence of nitrobenzene.  In an example, cotton is treated with a mixture of nitric acid and nitrobenzene, and the product after washing and drying is warmed with a mixture of glacial acetic acid, acetic anhydride, and bromine or other catalyst, as indicated in Specification 10706/12; the acetate is separated in the usual manner by dilution with water, and may be hydrolyzed before or after separation.  Specification 1156/14 is also referred to.